If you are doing some scripting and using ‘time’ command, then you know sometimes it becomes difficult to capture the output as the output would be something like this:

: amit ; time ls

real    0m0.002s
user    0m0.000s
sys 0m0.001s

So, it is better to change that format. Here is simple example:

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TIMEFORMAT=’real %3R user %3U sys %3S pcpu %P’ time ls

amit ;  TIMEFORMAT=’real %3R user %3U sys %3S pcpu %P’ time ls

0.00user 0.00system 0:00.00elapsed 0%CPU (0text+0data 2432max)

0inputs+0outputs (0major+109minor)pagefaults 0swaps

amit ; TIMEFORMAT=’real %3R user %3U sys %3S’

amit ; time ls
real 0.001 user 0.001 sys 0.000

amit ;

amit ; TIMEFORMAT=’TIMEOUTPUT = real %3R user %3U sys %3S’

amit ; time ls
TIMEOUTPUT = real 0.001 user 0.001 sys 0.000

amit ;

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